- Title
- Daily steps and diet, but not sleep, are related to mortality in older Australians
- Creator
- Oftedal, Stina; Holliday, Elizabeth G.; Attia, John; Brown, Wendy J.; Collins, Clare E.; Ewald, Benjamin; Glozier, Nicholas; McEvoy, Mark; Morgan, Philip J.; Plotnikoff, Ronald C.; Stamatakis, Emmanuel; Vandelanotte, Corneel; Duncan, Mitch J.
- Relation
- Journal of Science and Medicine in Sport Vol. 23, Issue 3, p. 276-282
- Publisher Link
- http://dx.doi.org/10.1016/j.jsams.2019.09.018
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2020
- Description
- Objectives: Supporting healthy ageing is a key priority worldwide. Physical activity, diet quality and sleep are all associated with health outcomes, but few studies have explored their independent associations with all-cause mortality in an older population in the same model. The study aim was to examine associations between step-count, self-reported diet quality, restless sleep, and all-cause mortality in adults aged 55–85 years. Design: A prospective cohort study of adults in Newcastle, New South Wales, Australia. Method: Data were from 1697 participants (49.3% women; baseline mean age 65.4 ± 7.1 years). Daily steps (measured by pedometer), diet quality (from a modified Australian Recommended Food Score), and frequency of restless sleep (by self-report) were assessed in relation to all-cause mortality using Cox proportional hazard regression with adjustment for sex, age, household income and smoking. Baseline data were collected between January 2005 and April 2008, and last follow-up was in March 2017 (median follow-up 9.6 years). Results: Higher step count (HR: 0.93, 95%CI: 0.88–0.98 per 1000-step increment) and higher diet quality (HR: 0.86, 95%CI: 0.74–0.99 per 8-point increment in diet quality score) were associated with reduced mortality risk. Restless sleep for ≥3 nights/week was not associated with mortality risk (HR: 1.03, 95%CI: 0.78–1.39). Sensitivity analyses, adjusting for chronic disease and excluding deaths <1 year after baseline, did not change these estimates. Conclusions: Increased daily steps and consumption of a greater variety of nutrient-dense foods every week would result in substantial health benefits for older people. Future research should include a greater variety of sleep measures.
- Subject
- ageing; physical activity; nutrition; mortality; insomnia; SDG 3; Sustainable Development Goals
- Identifier
- http://hdl.handle.net/1959.13/1428790
- Identifier
- uon:38655
- Identifier
- ISSN:1440-2440
- Rights
- © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
- Language
- eng
- Full Text
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Goal 3: Good Health and Well-Being
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